25390395139775 has 12 divisors (see below), whose sum is σ = 31509297450000. Its totient is φ = 20296053223680.

The previous prime is 25390395139727. The next prime is 25390395139801. The reversal of 25390395139775 is 57793159309352.

It is a de Polignac number, because none of the positive numbers 2^k-25390395139775 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 406540355 + ... + 406602804.

It is an arithmetic number, because the mean of its divisors is an integer number (2625774787500).

Almost surely, 2^{25390395139775} is an apocalyptic number.

25390395139775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25390395139775 is a deficient number, since it is larger than the sum of its proper divisors (6118902310225).

25390395139775 is a wasteful number, since it uses less digits than its factorization.

25390395139775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813144418 (or 813144413 counting only the distinct ones).

The product of its (nonzero) digits is 241116750, while the sum is 68.

The spelling of 25390395139775 in words is "twenty-five trillion, three hundred ninety billion, three hundred ninety-five million, one hundred thirty-nine thousand, seven hundred seventy-five".